Calorimetric investigations of liquid Ge-Te and Si-Te alloys
Autor(en): | Schlieper, A Blachnik, R |
Stichwörter: | calorimetric investigations; Chemistry; Chemistry, Physical; Ge-Te alloys; Materials Science; Materials Science, Multidisciplinary; Metallurgy & Metallurgical Engineering; PB; Si-Te alloys; SN; TEMPERATURE; thermodynamics; TRANSITION | Erscheinungsdatum: | 1996 | Herausgeber: | ELSEVIER SCIENCE SA LAUSANNE | Journal: | JOURNAL OF ALLOYS AND COMPOUNDS | Volumen: | 235 | Ausgabe: | 2 | Startseite: | 237 | Seitenende: | 243 | Zusammenfassung: | The heats of solution of Ge and Te in liquid Ge-Te alloys and of Si in liquid Si-Te alloys were determined in a heat flow calorimeter at different temperatures. The excess enthalpies were calculated from the measured heat effects. In addition the heats of formation of liquid Ge-Te alloys were measured at 1203 K. The associate model was used to describe the thermodynamic functions. Minima of the enthalpy curves in the Ge-Te and Si-Te systems at 1213 K were found at 57 mol.% Te and -11.2 kJ mol(-1) and at 62 mol.% Te and -22.3 kJ mol(-1) respectively. A temperature dependence of the excess enthalpies was only observed in the Ge-Te system below about 1093 K. The enthalpies of the Si-Te system exhibited an almost linear temperature dependence. |
ISSN: | 09258388 | DOI: | 10.1016/0925-8388(95)02032-2 |
Zur Langanzeige
Seitenaufrufe
3
Letzte Woche
1
1
Letzter Monat
1
1
geprüft am 02.06.2024